Study on Technique of Nanostructured Surface of Medical Titanium Prepared by Anodic Oxidation
Abstract: An anodic oxidation approach for preparation of nanostructured titanium surface was developed by orthogonal design. The effects of the concentration of electrolyte, the working voltage and the duration for anodic oxidation on the hydrophobic property and the corrosion resistance of biomedical titanium surface have been systematically studied, and the biomedical titanium surface with the high quality has been achieved. In the study, the contact angle of pure water was utilized to demonstrate the hydrophobic property, the Tafel curve was used to characterize the corrosion resistance, and scan electronic microscope was performed to observe the surface morphology. It was found that the electrolyte composition of HF 1.0% solution, the anodic oxidation voltage set at 20 V and the anodic oxidation duration of 60 minutes were the optimal parameters for the anodic oxidation process. Using the optimal parameters, the obtained titanium surface possessed smaller contact angle and higher corrosion potential, indicating its good hydrophilic property and corrosion resistance. Scanning electron microscope results shown that ordered nanotube arrays were present on biomedical titanium material treated by the optimal anode oxidation process and the materials characterization revealed that the as-prepared surface was amorphous TiO2 film with thickness about 380 nm.
文章引用: 朱红芹 , 钱仕 , 吕维洁 (2013) 阳极氧化法制备医用钛纳米结构表面的工艺研究。 材料科学， 3， 150-156. doi: 10.12677/MS.2013.33028
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